Acta Chimica Sinica ›› 2001, Vol. 59 ›› Issue (5): 648-652. Previous Articles     Next Articles

Original Articles

化学键分散剂在PZN-PZT浆料中的分散和性研究

曾华荣;李国荣;张望重;港币 平;陈大任;殷庆瑞   

  1. 中国科学院无机功能材料开放实验室;中国科学院上海硅酸盐研究所.上海 (200050)
  • 出版日期:2001-05-15 发布日期:2001-05-15

Dipersion of powder in organic medic with chemically bonded dispersant

Zeng Huarong;Li Guorong;Zhang Wangzhong;Gang Bi@ping;Chen Daren;Yin Qingrui   

  1. Shanghai Inst Ceram., CAS.Shanghai(200050)
  • Online:2001-05-15 Published:2001-05-15

A chemically bonded disperant was prepared by reaction of a titanium alkoxide with a long -chin carboxylic acid, and its dispersion tn the PZN-PZT slurry was investigated through sediment test and FT-IR technique. The results show that the dispersant exhibited a good dispersion in PZN-PZT slury. The dispersant concentration required to produce stable dispersions in nonaqueous media corresponded to the monomolecular layer coverage noto the PZN-PZT particle surface. The dispersant adsorbed firmly onto the PZN-PZT particles by a strongly chemical bond formed through reaction of alkoxy groups on the dispersant molecule with surface hydroxyl of the PZN-PZT powder.

Key words: CHEMICAL BONDS, DISPERSANT AGENT, CARBOXYLIC ACID, FOURIER TRANSFORM, INFRARED SPECTROPHOTOMETRY

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